When a patient presents to a clinician, it is vitally important for that doctor to be able to differentiate quickly and correctly between the various diseases to which the presenting symptoms may be attributed. French's Index of Differential Diagnosis is unparalleled in providing the clinician with invaluable assistance in this regard. Arranged alphabetically, and based upon presenting symptoms, the text takes the reader through a step-by-step approach to that presentation, culminating in a description of the different diagnoses that it might represent. Where instrumental in aiding a correct diagnosis, full color or black and white illustrations are included throughout.